... 10◦–16◦despite the gusting ofthe wind. The stoss slope ofthe ripple lies in the range 8◦–10◦[227]. The lee slope is composed of a short straight section near the crest at anangle of about 30◦–34◦to ... on the dynamical behaviour of real sandpile surfaces.Finally, we present as an example ofthe use of these equations, a study of the dynamics of aeolian sand ripples [216].11.3 Case A: the ... below.11.3.2 Some caveatsWe realise from the above that the interface h is smoothed because ofthe action of the flow term which penalises the sustenance of finite gradients ∇h in Eq. (11.4).However,...
... them. Some of them need to be taught That’s the other part. Most of them come from the farms and we teach them at the workshops. To have workshops maybe twice a month with them to teach them first. ... to the decline ofthe agricultural sector. The economic situation was reported to have been made worse by the fall in profitability and closure of many ofthe gold mines in the district. The ... and the gold reserves in the mines are running out. The collapse ofthe mining industry raises further problems, for example, most ofthe migrant labourers left the community when they lost their...